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Finding the Fourth Proportional to 342,713.88, 472,928.04 and 187,661.16

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Solution

The fourth proportional to 342,713.88, 472,928.04 and 187,661.16 is: 258,963.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,713.88 : 472,928.04 = 187,661.16 : x
  2. Step 2: Convert to fraction form
    342,713.88/472,928.04 = 187,661.16/x
  3. Step 3: Cross multiply
    342,713.88x = 472,928.04 × 187,661.16
  4. Step 4: Simplify right side
    342,713.88x = 88,750,224,582.93
  5. Step 5: Solve for x
    x = 88,750,224,582.93/342,713.88
  6. Step 6: Final answer
    x = 258,963.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.